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Piezosurgery versus Rotatory Osteotomy in Mandibular Impacted Third Molar Extraction.
Bharat Bhati1, Pankaj Kukreja1, Sanjeev Kumar1
1Department of Oral and Maxillofacial Surgery, I.T.S Centre for Dental Studies and Research, Ghaziabad, Uttar Pradesh, India.
Annals of Maxillofacial Surgery
|July 18, 2017
Summary
Piezoelectric surgery offers advantages in reducing pain and swelling after mandibular third molar extraction. While taking longer, this technique enhances patient comfort and protects surrounding tissues compared to conventional rotatory osteotomy.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Technology
Background:
- Impacted mandibular third molars are frequently extracted.
- Conventional rotatory osteotomy is a common extraction method.
- Piezoelectric surgery offers a precise alternative for bone cutting.
Purpose of the Study:
- To compare piezoelectric surgery with rotatory osteotomy for mandibular third molar extraction.
- To evaluate postoperative outcomes including pain, swelling, and surgical time.
Main Methods:
- A study involving 30 patients undergoing bilateral mandibular third molar extractions.
- Patients were randomly assigned to either piezoelectric surgery (Piezotome) or conventional rotatory osteotomy.
- Outcomes measured included mouth opening, pain (VAS), swelling, dry socket, paresthesia, and surgical duration.
Main Results:
- Piezoelectric surgery demonstrated a statistically significant reduction in postoperative pain (P < 0.05).
- The mean surgical time for piezoelectric surgery was longer (51.40 ± 17.9 min) than for rotatory osteotomy (37.33 ± 15.5 min) (P = 0.002).
Conclusions:
- Piezoelectric surgery provides benefits such as soft tissue protection, improved visibility, and reduced vibration.
- Despite a longer operative time, piezoelectric surgery effectively decreases short-term pain and swelling.
- The technique offers significant advantages in reducing postoperative sequelae following third molar surgery.

